Even Powers of 2

import java.util.Scanner;

public class EvenPowersof2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 0; i <= n ; i+= 2) {
            System.out.println((int)Math.pow(2, i));


        }
    }
}